Gas burner and support



Oct. 26, 1954 M. R. EDWARDS GAS BURNER AND SUPPORT 2 Sheets-Sheet lFiled Dec. 7, 1949 ////////////////////////////fl///fl///W/ Oct. 26,1954 w s 2,692,643

GAS BURNER AND SUPPORT 2 Sheets-Sheet 2 Filed Dec. 7, 1949 &n mn &hu

m: m mm waw Q@ `Wm wW i .E & m x E U\ mam I e* mb l Patents& Oct. 26,1954 sign'or -to Springfield -Burner Corporation, Springfield,.Mass., acorporaton of Massachur.

setts i ApDlicationxDecember 7, 1949, Serial LN011131,548

Claims.

used either as an original installation orto effeet the Conversion of acoal or other type vstove to a gas stove.

One of the objectstof the inventionis to -p'ovide a Construction :which-wi-ll permit. ready cleaning and servicing of ;the unit should it atany time become clogged. The :burner-ports are of small diameter and,accordingly, cleaning is occasionally necessary. Thus, the inventioncontemplates a constructio-n permitting not onlythe removal of theburner'from'the stove but alsozthe v removal of a plug at the end,oftheburner to permit the introduction of .a cleaningtool .or brush.

Another object of the invention is theprovision of a long tubularburnerreenforced to suehv a degree by the heat radiating fins thatvertical and horizontal distortionxwill -be minimizedr Still anotherobject of the inventionis the provision of a supportingframe which willpermit the burner proper to expand and contract longiv tudinally whilelateral support at both `ends is maintained.

These and other objects of the invention will become more apparent asthe 'description proceeds with the aid of the accompanying drawings inwhich- Fig. 1 is an end elevation of the 'burner mountedin a fire box.

Fig. 2 is a plan View of the .burner. v

Fig. 3 is a side elevation 'of the burner of Fig: 2.

Fig. 4 is a Vertical sectionalelevation .on 'the line 4-4 of Fig.

Referring to Fig. 1, a fire boxis indicatectat 2 and haspositionedrtherein a support for-the burner consisting of a base 4, atubular column B carrying on its upper end a U-shapedbracket 8. Theburner, indicated' generally at 10, is supported by thebracketsandalsonby asmetatbafiie plate !2 which is designed to insu'etheupward movement of air through the ;burner :passages only.

The burner comprises a longrectangularsupporting frame M which supportsthe burnerubar 16 at both ends. Thsupportingframezm has side flanges l8and 211 which,-:uwhen:the.:burner 2 .e is in position, extend alongtheunder-side of the corresponding'edges :of plate 12. These fianges areSecured to the plateby -a plurality of bolts 22.` The righthand end-.offrame !4, as viewed in Figs. .2 and 3, includesa cross-member having acircular opening therein :Eorming a support 2@ which is adapted tosreceivethe -corresponding circular end 26 of theburnerbar lt. While thefit between-endi& and the circular support 24 is fairly close,;neverthelesathere is sufficient play so that as .the burner expands the.end 26 may slide within-the support.

At :theother ;end of frame ishit will .be noted that the frame breadensslightly as at 28 and si) to accommodate the larger burner base 32. Thisbase` end is affixed to the frameby screws 34 and 3:5 that passlaterally through the upwardly extendingearsBB and of the supportingframe. It .should 'be 'noted that screws .sa ,and 36 are above. thelevelof the .plate l2 and hence may be readily reached if it isdesiredto remove the burneriromthe frame .withoutdisturbing its mountingin the heat chamber.

The enlarged base 32 of the burner has a cavity or opening therein`which connects with .the gas line through a pipe or coupling 42. Theopening in the base leads directly into the long tubular body 44 of theburner !6. This tubular body has .a large number of small gas ports inits upper surface, a few .of which have beenindicated at 46. These.ports are the order of in diameter, and therefore, in the drawing whichis of reduced scale, they are shown merely as dots. In Fg. 4, however,the ports 46 have been exaggerated somewhat for the purpose of betterillustration.

The right hand end of tube M is closed by a removable plug 45 whichpreferably will be screwthreaded and adapted to receivea key or screwdriver to turn it when removal is desired. This plug, when removed,permits the insertion of a cleaningbrush which may be run through theentire length of tube 44.

On the sides and=bottom oi the burner tube it are a plurality of.radiating fins which are cast as -an integral unit with the tube. Thesefins when viewedin Fig. 2 are indicated atAl on one side .and'at 48 onthe other. These fins merge with a continuous longitudinally extendingfin 58 which can be plainlyseen in Figs. 3 and 4. Longitudinal n 50gives substantial rigidity to the burnerltube .44 :against verticaldistortion which is thedirectionin which'distortion is most likely tooccur-as the-;top of `the burner :is normally 'somewhathotten than.` thebottom; a

The presence of plate |2 insures that the all upwardly moving air mustpass the fins 41, 48, and 50 thereby providing for excellent radiationof heat from the burner tube. This radiated heat from the fins is inaddition to the heat supplied directly by the burning gas.

A pilot 52 is provided which serves two purposes. One of the pilotflames 54 is aimed at the burner ports to cause ignition of the burnerwhen gas is supplied thereto. The other pilot fiame 56 is directed at athermocouple 58 which controls the master valve so long as the pilot isin operation. When the thermocouple is heated, the valve will be open.Should the pilot flame go out and the thermocouple cool off, then themaster valve will close and will be incapable of opening until the pilotis relighted. This is a safety device that is in common use on manytypes of burners and constitutes no part of the present invention.

When it is deemed necessary to remove the burner for any purpose such ascleaning, all that needs to be done is to remove screws 34 and 36 whichbeing above plate 12 may be easily reached by a screw driver. Thecouplings to the burner pilot and thermocouple are likewise disconnectedin the usual manner after which the burner unit may be raised upwardlyat the rear end and then slid rearwardly to withdraw end 25 from socket24. When this has been accomplished and the burner removed, the plug atthe end of burner tube M may be unscrewed and the cleaning operationcarried out. The reverse series of steps are then followed to restorethe burner to operative position.

Immediately back of the pilot 5 2 is a vertical fiange 60 which offersprotection against drafts to the pilot. Flange 60 is also connected witha laterally extending block 62 on which is mounted the pilot 52, the gassupply coupling 64, and the thermocouple 58. A set screw (55 is utilizedto maintain the thermocouple at proper elevation.

The burner bar and the fins are preferably made of cast aluminumalthough it should be understood that other suitable metals might beused.

I claim:

l. A gas burner for use in a gas burner assembly, comprising a burnerbar in the form of a cylindrical hollow tube closed at one end by aremovable plug, a plurality of gas ports along the top of said tube, aplurality of transverse radiating fins protruding laterally from thesides and bottom of said tube, a single vertical longitudinal fin at thebottom of said tube intersecting said transverse fins, all of said finsbeing integral with said tube, an enlarged base at the other end of saidtube for connection with a gas supply, an integral laterally extendingblock between said transverse fins and said base, a pilot andthermocouple carried by said block, a supporting frarne for said burnerbar comprising side members extending along the side of said fins, anend cross member having a circular opening thei-ein in which the pluggedend of said tube is positioned, horizontal flanges along said sidemembers adapted to be Secured to a baflle, upstanding portions on saidframe adjacent said enlarged base and means connecting said upstandingportions and enlarged base at a level above said horizontal flanges.

2. A gas burner for use in a gas burner assembly comprising a burner barin the form of a cylindrical hollow tube closed at one end by aremovable plug, a plurality of gas ports along the top of said tube, aplurality of transverse radiating fins protrudng laterally from thesides and bottom of said tube, a single vertical longitudinal fin at thebottom of said tube intersecting said transverse fins, all of said finsbeing integral with said tube, an enlarged base positioned on the otherend of said tube and communicating therewith for connection with a gassupply, a supporting rame for said burner bar comprising side membersextending along the sides of said fins, an end cross-member of saidframe supporting the plugged end of said tube, horizontal flanges alongsaid side members and means located above said horizontal fiangesdetachably securing said frame and base together.

3. A gas burner unit adapted to be installed in a stove, comprising incombination a tubular burner bar with radiating fins and an enlargedbase at one end, an elongated vertically open supporting rame with itslongitudinal elements close to and substantially parallel to a planepassing through the outside edges of said fins and having a cross memberat one end shaped to support one end of said burner bar withoutlongitudinal restraint, a pair of upstanding ears at the other end ofsaid frame, means extending through said ears for detachably securingsaid enlarged base to said frame, and a horizontal fiange on said framebelow the level of said securing means and above the lower portion ofsaid fins, said ange adapted to be fastened to a bafile plate wherebyupon removal of said securing means the base end of said burner bar maybe raised and the other end withdrawn from said cross member to permitcomplete removal of said burner bar from said frame.

4. A gas burner unit adapted to be installed in a stove, comprising incombination a tubular burner bar closed at one end and having anenlarged base for connection with a gas supply at the other end, aplurality of radiating fins connected to and extending crosswise of saidburner bar, a longitudinally extending radiating fin connected to saidburner bar and said crosswise extending fins, an elongated supportingframe with its longitudinal elements closely adjacent the opposite sidesof said fins and having flanges along both sides for engagement with abafe plate, a support at one end of said frame for holding the closedend of said burner bar in slidable engagement therewith, upstandingmembers at the other end of said frame and removable means passingthrough said upstanding members above the level of said flanges andsecuring said base to said frame.

*5. A gas burner assembly comprising a straight cylindrical burner barclosed at one end and having an enlarged base at the other, a pluralityof radiating fins integral with said burner bar, an elongated supportingframe with its longitudinal elements closely adjacent said fins andhaving a cross member at one end which includes a circular openingtherein to receive the closed end of said burner bar in slidableengagement therewith, a baflie plate, means securing said frame in anopening in said baiile plate, said bafile plate closing the area aroundsaid frame, thereby compelling the passage of air through the spacebetween said burner bar and said longitudinal elements, upstandingmembers at the sides of the other end of said rame extending above saidbafiie plate and removable connecting means extending through saidupstanding members and securing said enlarged base to said frame wherebyupon removal of said connecting means 5 said burner may be removed fromsaid frame by raising said base vertically to a point above said frameand then withdrawng said burner in the direction of said base Withoutdisturbing said frame or said bame plate.

References cited in the file of this patent UNITED STATES PATEN'JSNumber Name Date 1,567,622 Sharp Dec. 29, 1925 1,984,933 Kuenhold Dec.18, 1934 Number 10 Number Name Date Forster Dec. 21, 1937 Dufault May21, 1940 Parrign Nov. 19, 1940 Haedike Nov. 18, 1941 Dufault Oct. 15,1946 Johnson et al June 5, 1951 FOREIGN PATENTS Country Date GermanySept. 10, 1924

